Aquamarine
UNB-2017-0253Minerals » Silicates » Cyclosilicates » Beryl
Description
Sample of light blue-greenish subhedral Aquamarine prism. Vitreous lustre.
Beryl (Be3Al2Si6O18) can come in a variety of colours and when it is a bluish-green in colour it is known as Aquamarine. Lustre is vitreous and streak is colourless. Hardness is 7 1/2 to 8 and cleavage is indistinct in one direction. Beryl usually occurs as six-sided prisms that have striations lengthwise.
Specifications
| Object name | Aquamarine |
|---|---|
| ID | UNB-2017-0253 |
| Legal status | Permanent collection |
| Category | Mineral |
| Classification | Mineral group: Silicates Sub-groups: Cyclosilicates » Beryl |
| Composition |
|
| Origin | Unknown |
| Pieces | 1 |
| Partial | No |
| Measurements |
|
Publications
- Chesterman, C.W. 1979. Audubon Society, Field Guide to North American Rocks and Minerals. Knopf.